20073917832 has 128 divisors (see below), whose sum is σ = 54671500800. Its totient is φ = 6117171200.

The previous prime is 20073917797. The next prime is 20073917837. The reversal of 20073917832 is 23871937002.

It is not an unprimeable number, because it can be changed into a prime (20073917837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3995482 + ... + 4000502.

It is an arithmetic number, because the mean of its divisors is an integer number (427121100).

Almost surely, 2^20073917832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20073917832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27335750400).

20073917832 is an abundant number, since it is smaller than the sum of its proper divisors (34597582968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20073917832 is a wasteful number, since it uses less digits than its factorization.

20073917832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5327 (or 5323 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 42.

The spelling of 20073917832 in words is "twenty billion, seventy-three million, nine hundred seventeen thousand, eight hundred thirty-two".